FreeBSD/Linux Kernel Cross Reference
sys/sys/un.h

     /*
      * Copyright (c) 1982, 1986, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)un.h        8.3 (Berkeley) 2/19/95
     * $FreeBSD: src/sys/sys/un.h,v 1.9.4.1 1999/09/05 08:23:15 peter Exp $
     */
    
    #ifndef _SYS_UN_H_
    #define _SYS_UN_H_
    
    #ifdef KERNEL
    #include <sys/unpcb.h>
    #endif /* KERNEL */
    
    /*
     * Definitions for UNIX IPC domain.
     */
    struct  sockaddr_un {
            u_char  sun_len;                /* sockaddr len including null */
            u_char  sun_family;             /* AF_UNIX */
            char    sun_path[104];          /* path name (gag) */
    };
    
    #ifdef KERNEL
    struct unpcb;
    
    int     uipc_usrreq __P((struct socket *so, int req, struct mbuf *m,
                    struct mbuf *nam, struct mbuf *control));
    int     unp_connect2 __P((struct socket *so, struct socket *so2));
    void    unp_dispose __P((struct mbuf *m));
    int     unp_externalize __P((struct mbuf *rights));
    #else /* !KERNEL */
    
    /* actual length of an initialized sockaddr_un */
    #define SUN_LEN(su) \
            (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
    
    #endif /* KERNEL */
    
    #endif /* !_SYS_UN_H_ */

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